Small paper gluing device and small paper pasting device

Abstract

The purpose of the present invention is to disclose a device for gluing small papers and a device for gluing small papers, a glue spreading roller and a glue applying roller, wherein the glue applying roller is a fan-shaped roller; the fan-shaped roller is provided with a first rotating shaft, the first rotating shaft is provided with an eccentric sleeve, an eccentric swing arm and a cylinder, the cylinder drives the eccentric swing arm and makes the fan-shaped roller fit or detach from the glue spreading roller through the eccentric sleeve; the first rotating shaft is provided with a first one-way bearing; the glue spreading roller is provided with a second rotating shaft, and the glue spreading roller is provided with a two-way bearing and a second one-way bearing; technical effect: the rubber roller is a fan-shaped roller, the arc surface of the fan-shaped roller is equivalent to the surface area of ​​the small paper, which can make the surface of the small paper covered with glue and prevent the glue from overflowing to other areas, thereby eliminating the glue cleaning operation; the glue spreading roller cooperates with the two-way bearing and the one-way bearing, and when it is necessary to stop temporarily for gluing, the glue spreading roller continues to rotate and spread glue when the glue applying roller stops rotating, thereby preventing the glue from thickening or even solidifying during the temporary stop.

Description

Technical Field

[0001] The invention relates to the technical field of paper bag forming, in particular to a small paper pasting and gluing device and a small paper pasting device. Background Art

[0002] Paper bags with handles are usually made by gluing the handles and the bag body together with a small piece of paper. When making such paper bags, the process is usually to first adhere the handles to the surface of the bag body, then apply glue to the surface of the small paper and then adhere to the handle of the bag body. This requires a small paper gluing device. The current small paper gluing device has the following defects: (1) The gluing surface of the gluing roller is much larger than the area of ​​the small paper, resulting in glue adhering to areas outside the small paper, requiring glue removal from time to time; (2) The disengagement structure between the gluing roller and the glue leveling roller is relatively complicated; (3) The driving force of the gluing roller and the glue leveling roller comes from the same motor. When it is necessary to stop temporarily, it is currently necessary to disengage the driving gear of the gluing roller from the driving gear of the glue leveling roller, and only let the glue leveling roller continue to rotate to prevent the glue from becoming viscous or even solidified; (4) After the gluing roller applies glue to the small paper, since the handle has been adhered to the surface of the bag body, the handle of the bag body is not flat, and the edge of the handle is not easily adhered to the small paper, which makes it easy for the small paper to be attached loosely, causing the handle to fall off easily.

[0003] In view of this, it is urgent to develop a small paper gluing device and a small paper pasting device to overcome the above-mentioned defects. Summary of the invention

[0004] In order to solve the above technical problems, the purpose of the present invention is to disclose a small paper gluing device and a small paper gluing device, which can make the fan-shaped gluing roller and the glue leveling roller easily separated and attached through the eccentric sleeve and the first one-way bearing and the second one-way bearing. When temporary stop is required, they are driven by different motors. At this time, only the glue leveling roller continues to rotate to achieve glue leveling, and the gluing roller stops rotating.

[0005] The first object of the present invention is to provide a gluing device for sticking small papers.

[0006] The second object of the present invention is to provide a device for sticking small pieces of paper.

[0007] In order to achieve the above first invention objective, the present invention provides a small paper gluing device, comprising a glue spreading roller, a gluing roller, a first support plate and a second support plate, wherein the gluing roller is a fan-shaped roller;

[0008] The fan-shaped roller is provided with a first rotating shaft, the first rotating shaft is provided with an eccentric sleeve, an eccentric swing arm and a cylinder, the cylinder drives the eccentric swing arm and enables the fan-shaped roller to fit into or separate from the glue-distributing roller through the eccentric sleeve;

[0009] The first rotating shaft is provided with a first one-way bearing and is rotatably arranged on the first supporting plate, the first one-way bearing is driven by a fourth gear, and the fourth gear is driven by a first motor;

[0010] The glue spreading roller is provided with a second rotating shaft, a glue groove is provided next to the glue spreading roller, the second rotating shaft is provided with a bidirectional bearing and is rotatably provided on the first support plate, and is also provided with a second unidirectional bearing and is rotatably provided on the second support plate, the second rotating shaft is provided with a third gear and a second gear, the third gear is meshed with the fourth gear, the third gear drives the bidirectional bearing, and the second gear drives the second unidirectional bearing;

[0011] A second motor is arranged on one side of the second supporting plate, a first gear is arranged on an output shaft of the second motor, and the first gear meshes with the second gear.

[0012] Preferably, a rubber layer is provided on the surface of the fan-shaped roller, and a concave-convex structure is provided on the surface of the rubber layer.

[0013] Preferably, the glue groove includes a first side wall, a second side wall and a third side wall, the first side wall contacts the glue leveling roller through an arc surface, the second side wall contacts the glue leveling roller through an arc surface, the two ends of the third side wall contact the first side wall and the second side wall respectively through inclined surfaces, and there is a slit between the bottom edge of the third side wall and the glue leveling roller.

[0014] Preferably, a side wall support frame is arranged on one side of the third side wall, and a first screw rod adjustment mechanism and a second screw rod adjustment mechanism are arranged on the top of the third side wall.

[0015] Preferably, the first spring sheet is pressed on the first side wall in a bent state, the first spring sheet is pressed on the second side wall in a bent state, and the second spring sheet and the top of the second spring sheet are both arranged on the horizontal bracket.

[0016] Preferably, a liquid level sensor is arranged above the glue tank.

[0017] Preferably, a glue adding hose is provided above the glue groove.

[0018] Preferably, a paper feeding roller is further arranged on the side of the glue application roller, and the paper feeding roller comprises a first paper feeding part and a second paper feeding part which are symmetrically arranged.

[0019] Preferably, the surface of the first paper feeding portion is provided with a first arc groove and a second arc groove which are parallel and symmetrical to each other, a spring and a corresponding arc block are provided in the first arc groove, and a spring and a corresponding arc block are provided in the second arc groove;

[0020] When the arc block on the surface of the first paper feeding portion is not subjected to pressure, the surface of the arc block is in the same plane as the surface of the first paper feeding portion under the action of the spring;

[0021] When the arc-shaped block on the surface of the first paper feeding portion is subjected to pressure, the surface of the arc-shaped block is lower than the surface of the first paper feeding portion.

[0022] In order to achieve the above-mentioned second invention objective, the present invention provides a small paper pasting device, including the small paper pasting and gluing device as described in the first invention.

[0023] Compared with the prior art, the technical effects of the present invention are as follows:

[0024] (1) The rubber roller is a fan-shaped roller. The arc surface of the fan-shaped roller is equivalent to the surface area of ​​the small paper. It can cover the surface of the small paper with glue without letting the glue overflow to other areas, eliminating the need for glue cleaning. At the same time, it can also prevent the handle part that exceeds the surface of the small paper from being coated with glue.

[0025] (2) The eccentric swing arm is driven by the cylinder, and then the glue roller and the glue leveling roller are made to fit or separate through the eccentric sleeve. The structure is simple and the clutch speed is fast.

[0026] (3) The glue application roller is provided with a first one-way bearing, while the glue spreading roller is provided with a two-way bearing and a second one-way bearing. During normal gluing operation, the first motor drives the fourth gear to rotate the glue application roller through the first one-way bearing, the fourth gear engages with the third gear and drives the second rotating shaft and the glue spreading roller to rotate through the two-way bearing. Due to the existence of the second one-way bearing, the second gear and the second one-way bearing are idle at this time; when temporary stop or maintenance is required, the first motor stops working and the second motor is started. The second motor engages with the second gear through the first gear, causing the second gear to reverse and drive the second rotating shaft and the glue spreading roller to rotate and spread glue through the second one-way bearing. Although the third gear engages with the fourth gear, the first one-way bearing is reversed at this time, causing the fourth gear and the first one-way bearing to idle, so that the glue application roller does not move. When the glue application roller and the glue spreading roller are not disengaged, glue spreading can continue. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 It is a schematic diagram of the three-dimensional structure of the gluing device of the present invention.

[0029] Figure 2It is a schematic diagram of the handle and the small paper of the present invention.

[0030] Figure 3 It is a schematic diagram of the three-dimensional structure of the gluing device of the present invention.

[0031] Figure 4 It is a side view schematic diagram of the gluing device of the present invention.

[0032] Figure 5 It is a side view schematic diagram of the gluing device of the present invention.

[0033] Figure 6 2 is a schematic cross-sectional view of the first paper feeding unit 51 of the present invention.

[0034] Among them, 1. glue roller; 11. second rotating shaft; 12. first support plate; 13. second support plate; 2. glue roller; 21. first rotating shaft; 22. eccentric sleeve; 23. eccentric swing arm; 24. cylinder; 3. glue groove; 31. first side wall; 32. second side wall; 33. third side wall; 331. side wall support frame; 332. first screw rod adjustment mechanism; 333. second screw rod adjustment mechanism; 34. first spring sheet; 35. second spring sheet; 36. horizontal bracket; 37. liquid level sensor; 38. glue hose; 4. second motor; 41. first gear; 42. second gear; 43. third gear; 44. fourth gear; 5. paper feed roller; 51. first paper feed part; 511. first arc groove; 512. second arc groove; 513. spring; 514. arc block; 52. Second paper feeding unit; 6. Handle; 7. Bag body; 8. Handle roller; 9. Small paper. DETAILED DESCRIPTION

[0035] The present invention is described in detail below in conjunction with the various embodiments shown in the accompanying drawings, but it should be noted that these embodiments are not limitations of the present invention, and any equivalent transformations or substitutions in functions, methods, or structures made by ordinary technicians in the field based on these embodiments are all within the scope of protection of the present invention.

[0036] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention. Example 1

[0037] Ginseng Figures 1 to 6As shown, this embodiment discloses a specific implementation of a gluing device for pasting small papers (hereinafter referred to as "gluing device").

[0038] Small paper gluing device, see Figures 1 to 6 , comprising a glue spreading roller 1, a glue applying roller 2, a first support plate 12 and a second support plate 13, wherein the glue applying roller 2 is a fan-shaped roller;

[0039] The fan-shaped roller is provided with a first rotating shaft 21, and the first rotating shaft 21 is provided with an eccentric sleeve 22, an eccentric swing arm 23 and a cylinder 24, and the cylinder 24 drives the eccentric swing arm 23 and makes the fan-shaped roller fit or detach from the glue-distributing roller 1 through the eccentric sleeve 22; the first rotating shaft 21 is provided with a first one-way bearing and is rotatably arranged on the first supporting plate 12, and the first one-way bearing is driven by a fourth gear 44, and the fourth gear 44 is driven by a first motor (not shown in the figure); the glue-distributing roller 1 is provided with a second rotating shaft 11, and a glue groove 3 is provided next to the glue-distributing roller 1, and the The second rotating shaft 11 is provided with a bidirectional bearing and is rotatably arranged on the first support plate 12, and is also provided with a second unidirectional bearing and is rotatably arranged on the second support plate 13. The second rotating shaft 11 is provided with a third gear 43 and a second gear 42, and the third gear 43 is meshed with the fourth gear 44. The third gear 43 drives the bidirectional bearing, and the second gear 42 drives the second unidirectional bearing; a second motor 4 is provided on one side of the second support plate 13, and a first gear 41 is provided on the output shaft of the second motor 4, and the first gear 41 is meshed with the second gear 42.

[0040] Specifically, when preparing a paper bag with a handle, the process is usually to first adhere the handle 6 to the surface of the bag body 7, see Figure 2 , and then glue the surface of the small paper 9 and adhere it to the bag body 7. In order to reduce the glue overflowing to the area outside the small paper during gluing, the glue roller 2 is designed as a fan-shaped roller, that is, the arc surface area of ​​the fan-shaped roller is equal to or slightly smaller than the area of ​​the small paper, which prevents the glue from overflowing and realizes the glue cleaning-free; the glue roller 2 and the glue leveling roller 1 are only in contact when gluing is required, and a clutch mechanism is designed for this purpose, see Figure 1 , Figure 4 and Figure 5 Specifically, the cylinder 24 drives the eccentric swing arm 23 and drives the eccentric sleeve 22 to deflect, thereby driving the glue roller 2 to fit or move away from the glue roller 1. The clutch mechanism has a simple structure and is easy to control. In order to continue to achieve glue spreading during temporary stop, see Figure 3, the glue roller 2 is provided with a first one-way bearing, and the glue leveling roller 1 is provided with a two-way bearing and a second one-way bearing; when the glue application operation is normal, the first motor (not shown in the figure) drives the fourth gear 44 and drives the glue roller 2 to rotate through the first one-way bearing, the fourth gear 44 meshes with the third gear 43 and drives the second rotating shaft 11 and the glue leveling roller 1 to rotate through the two-way bearing, because the second one-way bearing exists, at this time, the second gear 42 and the second one-way bearing are idle; when it is necessary to stop temporarily or during maintenance, the first motor stops working and starts the second motor 4, the second motor 4 meshes with the second gear 42 through the first gear 41, so that the second gear 42 is reversed and the second rotating shaft 11 and the glue leveling roller 1 are driven to rotate and spread glue through the second one-way bearing, although the third gear 43 meshes with the fourth gear 44, because the first one-way bearing is reversed at this time, the fourth gear 44 and the first one-way bearing are idle, so that the glue roller 2 does not move, and the glue roller 2 and the glue leveling roller 1 are not disengaged, and the glue leveling is continued to prevent the glue from thickening or solidifying during the temporary stop.

[0041] In order to ensure sufficient rubber loading capacity of the rubber roller 2, a rubber layer with a thickness of 1mm-2mm is provided on the surface of the fan-shaped roller, and a concave-convex structure is provided on the surface of the rubber layer, or the friction coefficient of the rubber layer is increased to increase the rubber loading capacity on the surface of the fan-shaped roller.

[0042] The specific structure of the glue groove 3 in this embodiment is as follows: Figure 1 and Figure 3 The glue groove 3 includes a first side wall 31, a second side wall 32 and a third side wall 33. The first side wall 31 contacts the glue roller 1 through an arc surface, the second side wall 32 contacts the glue roller 1 through an arc surface, and the two ends of the third side wall 33 contact the first side wall 31 and the second side wall 32 respectively through inclined surfaces. There is a slit between the bottom edge of the third side wall 33 and the glue roller 1. The size of the slit determines the thickness of the glue layer covering the surface of the glue roller 1, and indirectly affects the amount of glue on the surface of the upper glue roller 2. In order to adjust the size of the slit, side wall support frames 331 are arranged on three sides of the third side wall 33, and a first screw adjustment mechanism 332 and a second screw adjustment mechanism 333 are arranged on the top of the third side wall 33. Screw The first screw rod adjustment mechanism 332 and the second screw rod adjustment mechanism 333 can adjust the size of the slit. When the amount of glue applied on the left and right sides is inconsistent, the first screw rod adjustment mechanism 332 or the second screw rod adjustment mechanism 333 can be adjusted unilaterally. In addition, in order to prevent the first side wall 31 and the second side wall 32 from tilting, the first spring sheet 34 is pressed on the top of the first side wall 31 in a bent state, and the second spring sheet 35 is pressed on the top of the second side wall 32 in a bent state. The tops of the first spring sheet 34 and the second spring sheet 35 are both arranged on the horizontal bracket 36. With this design, when adjusting the size of the slit, that is, adjusting the amount of glue applied, the first side wall 31 and the second side wall 32 will not tilt, so that their arc-shaped surfaces are always in contact with the glue roller 1.

[0043] The principle of automatic glue addition in this embodiment is as follows: Figure 1 , Figure 3 and Figure 4 A liquid level sensor 37 is arranged above the glue tank 3. When the liquid level sensor 37 detects that the glue level is too low, the glue pump is started, and glue is automatically added through the glue adding hose 38 arranged above the glue tank 3. When the liquid level after adding glue reaches the threshold, the glue pump is stopped and the cycle is repeated in sequence.

[0044] The principle of gluing small paper in this embodiment is as follows: Figure 6 The side of the gluing roller 2 is also provided with a paper feeding roller 5, and the paper feeding roller 5 includes a first paper feeding part 51 and a second paper feeding part 52 which are symmetrically arranged. After the gluing roller 2 glues the first small paper 9 fed by the first paper feeding part 51, the paper feeding roller 5 continues to rotate until the first small paper 9 after gluing is attached to the handle position of the bag body 7 ( Figure 4 Then, the first paper feeding part 51 receives a new small paper 9. At this time, after the second small paper 9 sent by the second paper feeding part 52 is glued, the paper feeding roller 5 continues to rotate until the glued second small paper 9 is attached to the handle attachment position of the bag body 7 ( Figure 4The handle sticking roller 8 shown in the figure is circulated back and forth in sequence to achieve gluing of small papers one by one; when gluing, because the handle is attached to the surface of the bag body 7, the handle is higher than the surface of the bag body 7. When sticking small papers 9, the bonding surface at the edge of the small paper 9 and the handle 6 is prone to a technical defect of poor bonding, which often leads to poor bonding of the handle. In order to overcome this defect, the first paper feeding part 51 is taken as an example for explanation. The surface of the first paper feeding part 51 is provided with a first arc groove 511 and a second arc groove 512 which are parallel and symmetrically arranged to each other. 12, the first arc groove 511 and the second arc groove 512 correspond to the positions of the two sides of the handle 6 respectively. When the first paper feeding part 51 contacts the handle roller 8 to paste the small paper 9, the first arc groove 511 corresponds to one side of the handle 6, and the second arc groove 512 corresponds to the other side of the handle 6. The first arc groove 511 is provided with a spring 513 and a corresponding arc block 514, and the second arc groove 512 is provided with a spring 513 and a corresponding arc block 514. The arc block 514 and the first arc groove 51 1 is matched by a step, the arc block 514 and the second arc groove 512 are matched by a step, under normal circumstances, that is, when the small paper 9 is not attached, the first arc groove 511 and the arc block 514 are used as an example for explanation, when the small paper on the surface of the first paper feeding part 51 is not in contact with the sticking handle roller 8 (when the arc block 514 is not under pressure), the surface of the arc block 514 is on the same plane as the surface of the first paper feeding part 51 under the action of the spring 513; when the small paper on the surface of the first paper feeding part 51 is not in contact with the sticking handle roller 8 When the paper contacts the handle roller 8 (when the arc block 514 is under pressure), due to the existence of the handle 6, the handle 6 is higher than the surface of the bag body 7. Under the squeezing of the paper feeding roller 5 and the handle roller 8, the spring 513 is compressed so that the surface of the arc block 514 is lower than the surface of the first paper feeding part 51 and is blocked by the step. At this time, the small paper 9 is compressed and deformed, so that the handle 6 is wrapped and bonded by the small paper 9, that is, the small paper 9 is bonded to the handle 6 after deformation, so that the handle 6 and the small paper 9 are more firmly bonded to the bag body 7.

[0045] Since the matching mechanism and operation principle of the second arc groove 512 and the arc block 514 are the same, the working principle of the second arc groove 512 will not be repeated; since the working principle of the second paper feeding part 52 and the first paper feeding part 51 are the same, the structure and working principle of the second paper feeding part 52 will not be repeated.

Claims

1. A device for gluing small paper, characterized in that: It includes a glue spreading roller, a glue applying roller, a first support plate and a second support plate, wherein the glue applying roller is a fan-shaped roller; The fan-shaped roller is provided with a first rotating shaft, the first rotating shaft is provided with an eccentric sleeve, an eccentric swing arm and a cylinder, the cylinder drives the eccentric swing arm and enables the fan-shaped roller to fit into or separate from the glue-distributing roller through the eccentric sleeve; The first rotating shaft is provided with a first one-way bearing and is rotatably arranged on the first supporting plate, the first one-way bearing is driven by a fourth gear, and the fourth gear is driven by a first motor; The glue spreading roller is provided with a second rotating shaft, a glue groove is provided next to the glue spreading roller, the second rotating shaft is provided with a bidirectional bearing and is rotatably provided on the first support plate, and is also provided with a second unidirectional bearing and is rotatably provided on the second support plate, the second rotating shaft is provided with a third gear and a second gear, the third gear is meshed with the fourth gear, the third gear drives the bidirectional bearing, and the second gear drives the second unidirectional bearing; A second motor is disposed on one side of the second support plate, a first gear is disposed on an output shaft of the second motor, and the first gear meshes with the second gear; A paper feeding roller is also arranged on the side of the glue roller, and the paper feeding roller comprises a first paper feeding part and a second paper feeding part which are symmetrically arranged; The surface of the first paper feeding portion is provided with a first arc groove and a second arc groove which are parallel and symmetrical to each other, a spring and a corresponding arc block are provided in the first arc groove, and a spring and a corresponding arc block are provided in the second arc groove; When the arc block on the surface of the first paper feeding portion is not subjected to pressure, the surface of the arc block is in the same plane as the surface of the first paper feeding portion under the action of the spring; When the arc-shaped block on the surface of the first paper feeding portion is subjected to pressure, the surface of the arc-shaped block is lower than the surface of the first paper feeding portion.

2. The device for gluing small paper as claimed in claim 1, characterized in that: A rubber layer is arranged on the surface of the fan-shaped roller, and a concave-convex structure is arranged on the surface of the rubber layer.

3. The gluing device for sticking small paper as claimed in claim 1, characterized in that: The glue groove includes a first side wall, a second side wall and a third side wall. The first side wall contacts the glue leveling roller through an arc surface, the second side wall contacts the glue leveling roller through an arc surface, and both ends of the third side wall contact the first side wall and the second side wall respectively through inclined surfaces. There is a slit between the bottom edge of the third side wall and the glue leveling roller.

4. The gluing device for sticking small paper as claimed in claim 3, characterized in that: A side wall support frame is arranged at one side of the third side wall, and a first screw rod adjustment mechanism and a second screw rod adjustment mechanism are arranged at the top of the third side wall.

5. The gluing device for sticking small paper as claimed in claim 3, characterized in that: The small paper gluing device also includes a first spring sheet, a second spring sheet and a horizontal bracket; The first spring sheet is pressed on the first side wall in a bent state, the second spring sheet is pressed on the second side wall in a bent state, and the tops of the first spring sheet and the second spring sheet are both arranged on the horizontal bracket.

6. The device for gluing small paper as claimed in any one of claims 1 to 5, characterized in that: A liquid level sensor is arranged above the glue tank.

7. The gluing device for sticking small paper as claimed in claim 6, characterized in that: A glue adding hose is arranged above the glue groove.

8. A small paper pasting device, characterized in that: It comprises a small paper gluing device as described in any one of claims 1-7.

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